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Torvosaurus
''Torvosaurus'' () is a genus of carnivorous megalosaurid theropod dinosaurs that lived approximately 153 to 148 million years ago during the later part of the Jurassic Period in what is now Colorado and Portugal. It contains two currently recognized species, ''Torvosaurus tanneri'' and ''Torvosaurus gurneyi''.
In 1979 the type species ''Torvosaurus tanneri'' was named: it was a large, heavily built, bipedal carnivore, that could grow to a length of about . ''T. tanneri'' was among the largest carnivores of its time, together with ''Epanterias'' and ''Saurophaganax'' (which could be both synonyms of ''Allosaurus''). Specimens referred to ''Torvosaurus gurneyi'' were initially claimed to be up to eleven metres long, but later shown to be smaller.〔 Based on bone morphology ''Torvosaurus'' is thought to have had short but very powerful arms.
==Etymology==
The genus name ''Torvosaurus'' derives from the Latin word ''torvus'', meaning "savage", and the Greek word ''sauros'' (σαυρος), meaning "lizard". The specific name ''tanneri'', is named after first counselor in the First Presidency of The Church of Jesus Christ of Latter-day Saints Nathan Eldon Tanner. ''Torvosaurus gurneyi'' is dedicated to the paleoartist James Gurney, creator of the ''Dinotopia'' series of books.
''Torvosaurus'' was described and named by Peter M. Galton and James A. Jensen in 1979 and the type species is ''Torvosaurus tanneri''.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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